670780671448 has 8 divisors (see below), whose sum is σ = 1257713758980. Its totient is φ = 335390335720.

The previous prime is 670780671439. The next prime is 670780671467. The reversal of 670780671448 is 844176087076.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 670780671392 and 670780671401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41923791958 + ... + 41923791973.

Almost surely, 2^670780671448 is an apocalyptic number.

It is an amenable number.

670780671448 is a deficient number, since it is larger than the sum of its proper divisors (586933087532).

670780671448 is a wasteful number, since it uses less digits than its factorization.

670780671448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83847583937 (or 83847583933 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 58.

The spelling of 670780671448 in words is "six hundred seventy billion, seven hundred eighty million, six hundred seventy-one thousand, four hundred forty-eight".